Updated

As the worst U.S. measles outbreak in decades continues to grow and flu season approaches, experts have raised concerns about the reliability of federal health data after the CDC questioned two measles deaths in Pennsylvania. Those doubts have been compounded by news that a third Pennsylvania resident has now died of measles-related complications within less than three weeks. A local coroner identified the latest victim as a 40-year-old unvaccinated woman with underlying health conditions. The rising Pennsylvania death toll intensifies scrutiny of the CDC's handling of outbreak data and raises fresh questions about vaccination rates and the adequacy of the federal response as measles continues to spread nationally.